Home / 21,188.44-31,791.04-8,044.28

Finding the Fourth Proportional to 21,188.44, 31,791.04 and 8,044.28

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Solution

The fourth proportional to 21,188.44, 31,791.04 and 8,044.28 is: 12,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.44 : 31,791.04 = 8,044.28 : x
  2. Step 2: Convert to fraction form
    21,188.44/31,791.04 = 8,044.28/x
  3. Step 3: Cross multiply
    21,188.44x = 31,791.04 × 8,044.28
  4. Step 4: Simplify right side
    21,188.44x = 255,736,027.25
  5. Step 5: Solve for x
    x = 255,736,027.25/21,188.44
  6. Step 6: Final answer
    x = 12,069.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.